I want to landscape on the north side of my outdoor riding arena (240 feet long, full sun) and was planning to transplant some daylillies there until my sister said I would be wasting my time because the deer love them. We have lots of deer on our 40 acres but they seem to leave ornamentals alone, perhaps because we have enough fields for them to graze... but they routinely pass by the area I want to plant. Any suggestions? Thanks